Show HN: Verani – Socket.io-like realtime SDK for Cloudflare

Show HN (score: 5)
Found: December 12, 2025
ID: 2650

Description

API/SDK
Show HN: Verani – Socket.io-like realtime SDK for Cloudflare Hi HN,

I built Verani, an experimental realtime SDK for Cloudflare Actors (Durable Objects).

The goal is to bring a familiar, event-based DX (rooms, emit, channels, lifecycle hooks) to Cloudflare Durable Objects, while handling hibernation correctly.

It focuses on - Socket.io-like semantics on top of Durable Objects - Proper Actor hibernation handling (WebSockets survive, state is restored) - Typed API with explicit tradeoffs.

It’s early and experimental, but functional. I built it mainly to explore DX and state management patterns on Cloudflare Actors, and I’d love feedback from people who’ve built realtime systems or used Durable Objects.

More from Show

Show HN: Cachekit – High performance caching policies library in Rust

Show HN: Cachekit – High performance caching policies library in Rust

Show HN: AI video generator that outputs React instead of video files

Show HN: AI video generator that outputs React instead of video files Hey HN! This is Mayank from Outscal with a new update. Our website is now live. Quick context: we built a tool that generates animated videos from text scripts. The twist: instead of rendering pixels, it outputs React&#x2F;TSX components that render as the video.<p>Try it: <a href="https:&#x2F;&#x2F;ai.outscal.com&#x2F;" rel="nofollow">https:&#x2F;&#x2F;ai.outscal.com&#x2F;</a> Sample video: <a href="https:&#x2F;&#x2F;outscal.com&#x2F;v2&#x2F;video&#x2F;ai-constraints-m7p3_v1&#x2F;12-01-26-18-47-41" rel="nofollow">https:&#x2F;&#x2F;outscal.com&#x2F;v2&#x2F;video&#x2F;ai-constraints-m7p3_v1&#x2F;12-01-26...</a><p>You pick a style (pencil sketch or neon), enter a script (up to 2000 chars), and it runs: scene direction → ElevenLabs audio → SVG assets → Scene Design → React components → deployed video.<p>What we learned building this:<p>We built the first version on Claude Code. Even with a human triggering commands, agents kept going off-script — they had file tools and would wander off reading random files, exploring tangents, producing inconsistent output.<p>The fix was counterintuitive: fewer tools, not more guardrails. We stripped each agent to only what it needed and pre-fed context instead of letting agents fetch it themselves.<p>Quality improved immediately.<p>We wouldn&#x27;t launch the web version until this was solid. Moved to Claude Agent SDK, kept the same constraints, now fully automated.<p>Happy to discuss the agent architecture, why React-as-video, or anything else.

Show HN: SubTrack – A SaaS tracker for devs that finds unused tools

Show HN: SubTrack – A SaaS tracker for devs that finds unused tools Hi HN,<p>I built SubTrack to help teams find unused SaaS tools and cloud resources before they silently eat into budgets.<p>The motivation came from seeing how hard it is to answer simple questions: – Which SaaS tools are actually used? – Which cloud resources are idle? – What will our end-of-month spend look like?<p>SubTrack connects to tools like AWS, GitHub, Vercel, and others to surface unused resources and cost signals from one place. Recently I added multi-account support, currency localization, and optional AI-based insights to help interpret usage patterns.<p>This is an early-stage project and I’m actively iterating. I’d really appreciate feedback—especially from people managing cloud or SaaS sprawl.

Show HN: A MCP for controlling terminal UI apps built with bubbletea and ratatui

Show HN: A MCP for controlling terminal UI apps built with bubbletea and ratatui so you can start vibe-coding your ad-hoc terminal dashboard. With session replay and mouse click support built-in.

No other tools from this source yet.